This name is a synonym of Alsophila rupestris (Maxon) Gastony & R.M. Tryon.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26621192) with original publication details: J. Arnold Arbor. 27: 438 1946.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:73368-2.
This name was in version 1 of The Plant List, record tro-26621192, and has not been changed.